64 Ford Galaxie over heating

[krookedken]

I am a little stumped. My Galaxie after driving on the highway for about half hour or so, the tempature gauge will start to creep up to hot. How ever around town the gauge usually does not pass halfway. It has all new hoses and thermostat and my next step is a fan shroud and a external temp gauge. Anybody else run into this?

[DrJ]

That happened to my GMC when I,d only had it on the road about 6 months...
Radiator shop guy said the core was 3/4's plugged up and didn't know how it cooled it at all.

Other possibility is your mechanical and/or vacuum advance isn't advancing or advancing enough at higher RPM, or running lean...

[Jimv]

DrJ is right clogged Rad.you know waht i did & it worked great, take the rad out turn it upsiedown & stick a garden hose in the bottom( now top) rad hose neck & lt it fliush out the cap & other neck!!If you do this right away about 99% of the shit will ome out.Try it before you go to a rad.shop.Do it on cement of blacktop & you'll be amazed at how much crap comes out if it!!
if it needed a shroud it would be heating up at a idle.Try what i said & let us know how it worked. You can thank me later & with the money you save from not having it flushed you can buy Porn!! http://www.jalopyjournal.com/ubbthreads/images/graemlins/tongue.gif
JimV
PS don't bother with "10 minute" flush or anything they don't work good.Trust me.

[Ford Fairlane]

I had this same thing happen to me on an early Mustang some years ago. Something to check for also is a high pressure leak somewhere in the radiator, that you will only get on the freeway when the waterpump is turning fast which creates alot of pressure on the system causing the leak. When you slow down (back in town off the freeway) the pressure drops and the leak stops. The only way to check this is with a pressure tester. You install it on the radiator top where the cap goes and, it has a hand pump and a pressure gauge. You pump up the pressure to your systems recommended max and look for leaks.
When this happened to me the leak was coming from the radiator and throwing water at the hot motor, so when I would pull over and look I would never see the leak.
Stant makes this tester it's kind of pricey but worth it.
Something else to try. I'm not sure but kragen might rent this tool.

[SLAMIT]

The first thing that I would do is replace the radiator cap. You would be suprised how many times people chase a cooling problem and it turns out that it was a 5 dollar cap that was the problem. This may not cure it but is a good place to start. I had the same issue on a 63 Gal and on my 66 buick. Both times it was the cap.
Just my .02

SLAMIT

[47lincsled]

I worked for a radiator shop for ten years and saw plenty of this,if you take off the cap you will probably see what looks like calcium deposits on the tubes,the engines water pump just can't get enough water through the radiator,some times you can flush some off the loose stuff out,but usually it needs to be rodded out,they remove the top tank and physically stuff a thin flat piece of metal down each tube,this knocks the calcium deposits out restoring the flow,sometimes on an old radiator core isn't stong enough and you will have to recore it,a good radiator man can tell you up front if he thinks it will survive,good luck.

[krookedken]

Thanks so much for the info guys, this morning i yanked out the radiator and flushed it and it was spotless. Looked like a new one. After flushing the system and refilling I took it for a ride and so far so good. Wish me luck and thanks agian. I guess if it does not do the trick I will try the high pressure test.

[delaware george]

it might be the way you drive...like an asshole


http://www.jalopyjournal.com/ubbthreads/images/graemlins/grin.gifjust funnin ya,give me a call if you need a hand working on it,
george